Heating system.



No. 823,074. PATENTED JUNE 12, 1906.

I A. G. PAUL.

HEATING SYSTEM APPLICATION FILED APE.16,1901.

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' A. G. PAUL.

HEATING SYSTEM.

APPLICATION FILED APB-.16, 1901.

2 SHEETS-SHEET 2.

UNITED STATES PATENT onnronr ANDREW G. PAUL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO PAKIN COMPANY, A CORPORATION OF NEW YORK.

HEATING SYSTEM.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed April 16,1901. Serial No. 56,058.

To all whom it may concern.-

Be it known that I, ANDREW G. PAUL, a

citizen of the United States, residing in Boston, in the county of Sufiolk and State of Massachusetts, have invented a new and useful Improvement in Radiator Attachments for Heating Systems, of which the following is a full, clear, and exact specification, reference bein had to the accomgaanying drawthe discharge or outletvalve in such asystem.

The object of my'invention is to positively control the discharge of the air and the water of condensation from the radiator, and thus to improve and increase the efliciency of the system, and at the same time toprevent the loss or waste'ofthe heating-vehicle through the discharge-pipe, thus securing economy of operation. v I

p My invention consists in'a radiator attachment for use in heating systems consisting of a discharge-valve devlce comprising a suitable'valve-casing' rovided with a port for the discharge ,of tl ie water, a fluid-pressure 1 motor controllingsaid port, the casinglbeing two radiators and in whic I a system containing two radiators.

provided with a fluid-pressure cham er on one side of themotor, an air-passage extending through the, motor, a valve-piece adapted to close the air-paesagefand a float adapted to slide on the-valve-piece and to operate the same.

My invention alsoconsists in certain" other i features of construction and combinations of parts hereinafter described and claimed.

My invention is fully illustrated in the accompanying drawings, in which.-

Figure '1 shows my invention as applied to i 2 is a vertical sectional view of the preferre form of mydischarge-valve device. Fig... 3 shows my invention applied to a s stemembodying ll th a -P s lpadinifrom one of the radiators is controlled y a t the wall of the room or in any other suitable position, and the other air-passage is conermostat adapted to be placed upon which the stem of the piston extends.

trolled b a' thermostat placed in the air-passa e itse f.

v imilar numbers denote similar parts in the different figures.

Referrin to Fig. 1, 1 1 are any suitab e construction.

radiators of 2 is the suppl gipe. 3 3 are supply-valves. 4 4 are t e ischarge-valve devices. 5 is the common discharge-pi e having branches connecting with each ciischar e-valve device. 28 is a pump of an suita le construction which is connected with the lower end'of the discharge p1 e. Y

an Fi 2 I have shown the construction of the disc arge-valve device. 14 is the pi e or passage leading to the discharge-valve evice. 15 is the valve-casing, whichmay be made in any suitable form. This casing is provided with a port 16, through which the water of condensation esca es. 17 is a valve which is adapted to close t e port 16. 1 18'is 17 at its lower end. When the iston rises and falls, the valve 17 is lifted or owered by means of this stem. 20 is a fluid-pressure chamber which is formed in the upper part of the-valve-casin'g above the piston 18. 21 is a passa e for the escape'of air or steam or vapor; his air-passe e serves as a communication between the uid-pressure chamber 20 and the inlet or the, sup ly side of the valve device or in the partic ar form shown in this figure with the valve-chamber, which is on the other side of the piston from the fluid-pressure chamber 20. Aspring is employed which is adapted to bear down 11 on the upper. side of the piston 18 ,thustemfing to force thepiston down to close the port 16.

'25 is a float-valve which is adapted to be'operated b the water of condensation collecting int 0 lower part of the valve-chamber sure cham er w th the discharge-pipe 5. The

pipe or passage 26 is rovided with a valve 27, by means of whic the said pi e can be controlled. A sleeve 29 is rovi ed' which is adapted 'to be moved bac and forth on the piston-stem bythe float 25, so as to cause the said sleeve to open or close the air-passage 21, which extends through the piston. The sleeve or valve-piece 29 is provided at its ends with collars 30, against which the float 25 is adapted to strike. When thesleeve 29 is in its highest position, the upper collar 30 acts as a valve and closes the end of the air-passage 21. The float 25 slides u on the sleeve 29. When the parts are in t e position shown in Fig. 2, the air is drawn out through the air-passage 21, the fluid-pressure chamber 20, the passage 26, and the discharge-pipe 5 by the pump 28. When the water of condensation collects in the valve, the float '25 is lifted until it strikes the upper collar 30 of the sleeve 29. The float there- -upon lifts the sleeve until the upper collar 30 is pressed against the piston, so as to close the air-passage 21. As a result of this, differentia pressures are produced on the two sides of the piston to such an extent as to cause the piston to be lifted, thereby opening the discharge-port 16 and causing the water of condensation to be drawn out. As the water of condensation escapes the float 25 falls until it strikes the lower collar 30 of the sleeve 29. The float then forces the sleeve down upon the piston-stem, thereby opening the passage 21 and a ain equalizing the pressures on the two si es of the piston or decreasing the difference between said pressures sufficiently to cause the piston to descend and close the port 16. As a resultof this construction, it will be seen that the airpassage 21 remains closed for a longer period of time than if the air-passage were closed directly by the float 25, as a result of which the port 16 remains open lon er for the discharge of the water of con ensation, thus causing larger quantities of water to be discharged at each opening of the port 16. The sleeve 29 is preferably made in two parts, as shown in Fig. 2 these two parts being provided with screw-threaded portions b means of which the two parts can be a justed one ulpon the other, so as to increase or decrease t e length of the sleeve 29 and to thereby regulate the opening and closing of the. passage 21. Any other means may be emploged for shorteningor lengthening the sai sleeve.

Referring to Fig. 3, 1 1 are radiators of any suitable form. 2 is a supply-pipe. 3 3 are supply-valves. 4 4 are d1schargevalve devices. 5 is a common discharge-pipe. 28 is a pump connected with the lower end of the discharge-pipe. figure is the same as that shown in Fig. 1 in the respects already mentioned. In the discharge-valve device connected with the up- The system shown in this per radiator the valve 27 which is placed in the passage or pipe 26, is controlled by means of a thermostat 31, which is placed upon the wall of the room or in any other suitable position. The connection between the thermostat 31 and the valve 27 is made in any usual manner for exam 1e, by means of an electric circuit 32 32, incl iiding a battery 33 and an electroma et 34 and an armaturelever 35. When t e room has been heated to the desired point, the thermostat 31 o erates to close the valve 27, as a result 0 which neither air nor water of condensation will be drawn out from the radiator, but will be allowed to collect therein, thus reducing the amount of heat given off by the radiator and tending to prevent the overheating of the room. When the temperature of the room is below the desired point, the thermostat 31 operates to open the valve 27, in which condition the air and water'of condensation are drawn out from the system in the manner already explained. In the discharge-valve device connected with the lower radiator in Fig. 3 the pipe or passage 26 is made in the form of a pipe extending a short distance away from the body of the valve and provided with the ordinary thermostatic valve 36. This thermostatic valve 36 permits the escape of air through the pipe.26, but prevents the escape of steam through said pi e. The thermostatic valve 36 is put a short distance away from the main body of the valve device 4 in order that the valve 36 may be more sensitive in its operation. In other res ects the system shown in Fig. 3 operates in liege same manner as the system shown in It will be apparent that my invention is also applicable to a system in which no exhausting device is employed, but in which the heating-vehicle is circulated under ressure. It is also obvious that my improve heating system may be used for drying purposes.

Some of the advantages secured by my improved system are as follows: The water and air are intermittently and positivelyremoved from the radiator or heater whenever they collect in an appreciable quantity. The water of con ensation which collects operates with certainty upon the float-valve, and the o ening and closing of the air-passage and the dischargeassage for the water are thus controlled ankfoperated with certainty. The air-passage is closed by means of a valve device which shuts the said air-passage ofl completely and mechanically. The operation of the system is efficient and economical. By employing the thermostat to control the air-passage the wasting of'the heating-vehicle is prevented. When the thermostat which controls the airassage is placed in the room to be heated, tlie invention tends to prevent the overheating of said room and at the same time secures economy by prevent- 13o ing the use of the heating-vehicle in doing heating work which is not required.

What I claim as new, and desire to secure by Letters Patent, is

1. A radiator attachment for use in heating systems consisting of a discharge-valve device comprising a suitable valve-casing provided with a port for the dischar e of the water, a fluid-pressure motor control ing said port, the casing being provided with adluidpressure chamber on one side of the motor, an air-passage extending through the fluidpressure motor, a valve-piece adapted to close the air-passage, a float adapted to slide on the valve-piece and to' operate the same, substantially as set forth.

2. A radiator attachment for use in heating systems consisting of a discharge-valve device comprising a suitable valve-casing provided with a port for the discharge of the water, a piston controllin said ort, the casing being provided with a Euid-pressure chamber on one side of the piston, an air-passage extending through the piston, a valvepiece adapted to close the air-passage, a float adapted to slide on the valve-piece and to operate the same, substantially as set forth.

3, A radiator attachment for use in heating systems consisting of a discharge-valve device comprising a suitable valve-casing provided with a port for the discharge of the water, a piston controlling said port, the castion, substantially as set forth.

ing being provided with a fluid-pressure chamber on one side of the piston, an air-passage serving as a communication between the fiuid-pressure chamber and the system on the inlet side of the valve device, a valve-piece,

and a float adapted to slide on the same and operated by the water of condensation and controlling the air-passage, and a communication between the fluid-pressure chamber and the discharge-pipe, and a thermostatic device adapted to be operated by the heat of the room and to control the said communica- 4. A radiator attachment for use in ing systems consisting of a suitable valvecasing provided with a port for the discharge of the water, the discharge-valve 17, the piston 18 connected with the valve-stem and provided with the airassage 21, the fluid-pressure chamber 20, t he float 25, the sleeve 29 having the collars 30, the'passage 26 connectingthe fluid-pressure chamber with the dischargeipe beyond the discharge-valve, substantia ly as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ANDREW G. PAUL.

heat- 

